Technical Information
Fuel Consumption
Bethlehem’s Surface-Mixed Burners
Listed below are the fuel consumption data for the Bethlehem Burners. All burners were set at the maximum flame setting that yields the hottest flame without distorting the solid blue feature of the Bethlehem flame. The numbers are expressed in Liters Per Minute (LPM). The fuel used for the Alpha and Bravo burners was propane gas that was regulated by approximately 2 pounds per square inch (psi). The oxygen was delivered from a compressed gas cylinder with a regulator and set for approximately 8psi. The fuel used for the Champion and Grand burners was Propane gas that was regulated by approximately 5 pounds per square inch (psi). The oxygen was delivered from a compressed gas cylinder and set for approximately 20psi. Burner flames used for soft glass will not require as much heat as a flame for hard or borosilicate glass. All Bethlehem Burners can work both soft and borosilicate glass.
More technical information about our torches can be found here. If you’re using an Oxygen Concentrator with your Bethlehem Burner this document will also prove useful.
Alpha
Gas/Oxygen Flow Rates:
GAS: 2-5 psi – 3 LPM
OXYGEN: 8-20 psi – 10 LPM
BTU: 200 BTU per minute
The STACKS
Gas/Oxygen Flow Rates:
GAS: 2-5 psi – 3 LPM
OXYGEN: 8-20 psi – 10 LPM (STACKS I = 180 LPH, 6.36 cu ft/h; STACKS II = 900 LPH, 31.78 cu ft/h)
Champion
Gas/Oxygen Flow Rates:
GAS: 5 psi – 8 LPM
OXYGEN: 20 psi – 40 LPM
BTU: 775 BTU per minute
Grand
Gas/Oxygen Flow Rates:
GAS: 5 psi – 12 LPM
OXYGEN: 20 psi – 60 LPM
BTU: 1,150 BTU per minute
Sharp Flame Hand Torch
Gas/Oxygen Flow Rates:
GAS: 2-5 psi – 3 LPM
OXYGEN: 8-20 psi – 10 LPM
Bravo
Gas/Oxygen Flow Rates:
GAS: 2-5 psi – 6 LPM
OXYGEN: 8-20 psi – 30 LPM
BTU: 570 BTU per minute
Champion Sharp Flame
Gas/Oxygen Flow Rates:
GAS: 5 psi – 8 LPM
OXYGEN: 20 psi – 40 LPM
The Grand Sharp Flame
Gas/Oxygen Flow Rates:
GAS: 5 psi – 12 LPM
OXYGEN: 20 psi – 60 LPM
BTU: 1,150 BTU per minute
Product Diagrams
Alpha
Burner Configuration:
Center Fire – 6 jets
Face Diameter – 5/8″
Champion
Burner Configuration:
Center Fire – 6 jets
Outer Fire – 30 jets
Face Diameter – 1 1/8″
Bravo
Burner Configuration:
Center Fire – 6 jets
Outer Fire – 12 jets
Face Diameter – 1″
Grand
Burner Configuration:
Center Fire – 6 jets
Middle Fire – 12 jets
Outer Fire – 24 jets
Face Diameter – 1 3/8″
Parts of a valve
